Kabushiki Kaisha Toyoda Jidoshokki Seisakusho

Kazuhiro Ohta

Hayato Ikeda

Hisato Kawamura

Hideo Mori

Isao Tsuzuki

A multi-piston swash plate type compressor with an internal lubricating arrangement for an air-conditioning system used in a vehicle such as an automobile including a cylinder block body having a swash plate chamber formed therein receiving a swash plate, cylinder bores formed therein for receiving pistons, and a central axial bore formed therein for receiving a driving shaft, the driving shaft being rotatably supported in the axial bore by radial bearings provided therein and by thrust bearings provided around the shaft at the sides of the swash plate. The compressor has suction and discharge chambers communicated with the cylinder bores through reed valves. The swash plate chamber is fed with a refrigerant inclusive of a lubricating oil from the air-conditioning system, and the refrigerant is then fed to the suction chamber through the axial bore. The thrust bearings have a race element surrounding the shaft, a clearance between the race element and the shaft being locally widened for increasing a flow rate of the refrigerant to be introduced into the axial bore through the thrust bearings.

Multi-piston swash plate type compressor with internal lubricating

A multi-piston swash plate type compressor for an air-conditioning system used in a vehicle such as an automobile, the compressor having combined cylinder blocks closed, at both axial end faces thereof, by front and rear housings each having a radially inner suction chamber and an outer discharge chamber isolated from the suction chamber, valve plates interposed between the axial end faces of the combined cylinder blocks and the front and rear housings, respectively, a plurality of elongated screw bolts axially and hermetically assembling the combined cylinder blocks, the front and rear housings and the valve plates, and an internal sealing and guiding unit arrnaged in the suction chambers of the front and rear housings for rigidly holding the valve plates against a high pressure of a refrigerant after compression, to reinforce the hermetic seal between the axial end faces of the combined cylinder blocks and the valve plates, and for guiding refrigerant flows within the suction chamber to provide a uniform distribution of the refrigerant to cylinder bores formed in the combined cylinder blocks.

Multi-piston swash plate type compressor with arrangement for internal

A compressor comprising a cylinder block having a plurality of compression chambers and a housing having a discharge chamber and an outlet port. The housing is mounted on the cylinder block through a valve plate having discharge ports for discharging fluid from the compression chambers into the discharge chamber. At least one bulkhead wall is provided in the housing, extending from a position near at least one of the discharge ports toward the outlet port for separating the at least one discharge port and an adjacent discharge port.

Growing community of inventors

Kariya, Japan

Kazuhiro Ohta